WizFi210 Datasheet (WIZnet Co., Ltd.)
WizFi210 Datasheet
(Version 1.20)
WizFi220 follows all of information described in this documents
©2013 WIZnet Co., Ltd. All Rights Reserved.
☞ For more information, visit our website at http://www.wiznet.co.kr
WizFi210 Datasheet (WIZnet Co., Ltd.)
Certification Information
CE for Class B ITE
INFORMATION TO THE USER
Hereby, WIZnet. Declares that these WizFi210 and WizFi220 are in compliance with the
essential requirements
and other relevant provisions of directive 1999/5/EC.
WARNING: These are the class B products. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate measures.
FCC for Class B ITE
INFORMATION TO THE USER
These equipments have been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
Guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one more
of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
WARNING: These equipments may generate or use radio frequency energy. Changes or
modifications to this equipment may cause harmful interference unless the modifications are
expressly approved in the instruction manual. The user could lose the authority to operate this
equipment if an unauthorized change or modification is made.
TELEC
KCC for Class B ITE
INFORMATION TO THE USER
이 기기는 가정용(B급) 으로 전자파 적합등록을 한 기기로서 주거지역에서는 물론 모든
지역에서 사용할 수 있습니다.
- Trade Name or Applicant : WIZnet Co., Ltd.
- Equipment Name : Wireless LAN Module
- Model Number : WizFi210 / WizFi220
- Manufacturer / Country of Origin : WIZnet, Co., Ltd. / KOREA
- Certification Number : KCC-CRM-WWW-WIZFI210 / KCC-CRM-WWW-WIZFI220
WARNING: 해당 무선설비는 운용 중 전파혼신의 가능성이 있으므로 인명안전과 관련된
서비스는 할 수 없습니다.
Equipment : Wireless Module
Model : WizFi210 UFL antenna type, WizFi210 Chip antenna type
Made in Korea
010-100040
WizFi210 Datasheet (WIZnet Co., Ltd.)
Document Revision History
Date
Revision
Changes
2011-03-24
V1.0
Official Release
2011-05-24
V1.01
Changed Power Consumption and RF Output Power
Added Auto Reconnect AT Command(AT+XAR)
Added Certification Information
2011-09-05
V1.10
Changed Evaluation Board
Changed GPIO number(HW Trigger, Button)
Changed AT+XEHT Command
Added Limited AP Feature
Added WizFi220 Specs
2012-01-11
V1.11
Added UART baud rate(460800, 921600bps)
Added EXT_nRESET description
Added FAQ
Added AT+DHCPSRVR Command
Added Product contents
2012-10-24
V1.12
Added AT+WAUTO Option(2 for Limited AP mode)
Added FAQ(Reducing the disassociation event)
Removed unused AT Commands
Removed some features for customizing f/w
2013-03-08
V1.13
Added AT+XRESET Command
Added max/min power value of AT+WP command
2013-03-12
V1.14
Added explanation of AT+XRESET Command
Added FAQ
2013-05-06
V1.2
Divided two documents, Datasheet for Hardware Engineer
and Programmers’ guide for Software Engineer.
More detail information included in datasheet.
Information in this document is belived to be accurate and reliable. However, WIZnet does
not give any representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the consequences of use of
such information.
WIZnet reserves the right to make changes to information published in this document,
including without limitation specifictions and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior to the
publication hereof.
WizFi210 Datasheet (WIZnet Co., Ltd.)
<Contents>
1. Overview .......................................................................................................................... 1-1
2. Brief Specifications ........................................................................................................... 2-2
3. Block Diagram .................................................................................................................. 3-3
4. Pin Description ................................................................................................................. 4-4
4.1. Pin Map .......................................................................................................... 4-4
4.2. Pin Description ................................................................................................ 4-4
4.3. Factory Reset Timing Diagram ........................................................................ 4-7
5. EXT_nRESET guide ......................................................................................................... 5-8
6. RF Specification ............................................................................................................... 6-9
7. Power Consumption ....................................................................................................... 7-10
7.1. WizFi210 Mode 1(VDDRTC=VDD=3.3V, VDDIO=1.8V, Temp=25°C) ............. 7-10
7.2. WizFi210 Mode 2(VDDRTC=VDD=3.3V, VDDIO=3.3V, Temp=25°C) ............. 7-10
7.3. WizFi220 Mode 1(VDDRTC=VDD=3.3V, VDDIO=1.8V, Temp=25°C) ............. 7-11
7.4. WizFi220 Mode 2(VDDRTC=VDD=3.3V, VDDIO=3.3V, Temp=25°C) ............. 7-11
8. Dimension ...................................................................................................................... 8-12
8.1. Module Dimension ........................................................................................ 8-12
8.2. Recommended Footprint Dimension.............................................................. 8-13
9. Electrical characteristics ................................................................................................. 9-14
9.1. Operating Condition ...................................................................................... 9-14
9.2. Digital Input characteristics ............................................................................ 9-14
9.3. Digital Output characteristics ......................................................................... 9-14
9.4. Tri-State I/O characteristics ........................................................................... 9-15
9.5. RTC Input characteristics .............................................................................. 9-15
9.6. RTC Output characteristics............................................................................ 9-16
9.7. Internal 1.8V regulator characteristics ............................................................ 9-16
9.8. Communication Interface............................................................................... 9-16
9.8.1. UART Interface characteristics ............................................................... 9-16
9.8.2. SPI Interface characteristics ................................................................... 9-16
10.Reflow Condition ...................................................................................................... 10-18
11.Circuit guide for On-board FW upload .......................................................................... 11-19
12.Reference Schematic .................................................................................................. 12-20
WizFi210 Datasheet (WIZnet Co., Ltd.)
<Table>
TABLE 1 BRIEF SPECIFICATION ........................................................................................................................2-2
TABLE 2 WIZFI210 PIN DESCRIPTION ...........................................................................................................4-7
TABLE 3 FACTORY RESET TIMING VALUE ..................................................................................................4-7
TABLE 4 RF SPECIFICATION ...............................................................................................................................6-9
TABLE 5 WIZFI210 MODE 1(VDDIO = 1.8V) ............................................................................................... 7-10
TABLE 6 WIZFI210 MODE 2(VDDIO = 3.3V) ............................................................................................... 7-10
TABLE 7 WIZFI220 MODE 1(VDDIO = 1.8V) ............................................................................................... 7-11
TABLE 8 WIZFI220 MODE 2(VDDIO = 3.3V) ............................................................................................... 7-11
TABLE 9 OPERATING CONDITION ................................................................................................................ 9-14
TABLE 10 DIGITAL INPUT CHARACTERISTICS ...................................................................................... 9-14
TABLE 11 DIGITAL OUTPUT CHARACTERISTICS .................................................................................. 9-14
TABLE 12 TRI-STATE I/O CHARACTERISTICS ........................................................................................ 9-15
TABLE 13 RTC INPUT CHRACTERISTICS .................................................................................................. 9-15
TABLE 14 RTC OUTPUT CHARACTERISTICS ......................................................................................... 9-16
TABLE 15 INTERNAL 1.8V REGULATOR CHARACTERISTICS ........................................................ 9-16
TABLE 16 SPI INTERFACE TIMING VALUE ................................................................................................ 9-17
TABLE 17 REFLOW CONDITION .................................................................................................................. 10-18
WizFi210 Datasheet (WIZnet Co., Ltd.)
<Figure>
FIGURE 1 WIZFI210 BLOCK DIAGRAM ..........................................................................................................3-3
FIGURE 2 WIZFI220 BLOCK DIAGRAM ..........................................................................................................3-3
FIGURE 3 WIZFI210 PIN MAP ..............................................................................................................................4-4
FIGURE 4 FACTORY RESET TIMING DIAGRAM ........................................................................................4-7
FIGURE 5 REFERENCE SCHEMATIC FOR EXT_NRESET ...................................................................5-8
FIGURE 6 MODULE DIMENSION .................................................................................................................... 8-12
FIGURE 7 RECOMMENDED FOOTPRINT DIMENSION ....................................................................... 8-13
FIGURE 8 SPI INTERFACE TIMING DIAGRAM ........................................................................................ 9-16
FIGURE 10 REFLOW CHART ......................................................................................................................... 10-18
FIGURE 11 REFERENCE SCHEMATIC FOR ON-BOARD FW UPLOAD ................................... 11-19
FIGURE 12 VIN = BATTERY, STANDBY MODE SUPPORT ............................................................... 12-20
FIGURE 13 VIN = DC ADAPTOR, ALWAYS ACTIVE .............................................................................. 12-20
WizFi210 DataSheet (WIZnet Co., Ltd.)
1-1
1. Overview
WizFi210/220(hereinafter WizFi210) is a Wi-Fi module that provides the robust and stale Wi-Fi
connectivity with low power consumption. WizFi210 performs all functions for Wi-Fi connectivity
and TCP/IP processing. All you have to do is just sending commands to the module via serial
interface.
n Support 802.11b only
n Serial interface
u UART(up to 921Kbps baud rate)
u SPI(up to 2.25MHz clock)
n Support AT commands
n Support to multi sockets up to 16 concurrently
n Plenty of TCP/IP functions
u TCP, UDP, IP, ICMP,
n Ultra low power
u Support to Sleep mode and Alarm input for waking up WizFi210 in sleep
mode
n Plenty of Security mode
u WEP, WPA, WPA2PSK, Enterprise mode(example EAP-TLS and so on)
n Support GPIOs
n Hardware accelerator for AES and RC4 encryption/decryption
n Plenty of Operation mode
u Station mode(infrastructure)
u Ad-hoc mode
u Limited AP(Soft AP) mode without ethernet or Wifi interface for uplink
WizFi210 DataSheet (WIZnet Co., Ltd.)
2-2
2. Brief Specifications
Specifications
Description
Radio Protocol
IEEE 802.11b/g/n Compatible
Supported Data Rates
11, 5.5, 2, 1 Mbps (IEEE 802.11b)
Modulation
DSSS and CCK
RF Operating Frequency
2.4 - 2.497 GHz
Antenna Options
Chip antenna and U.FL connector for external antenna
Networking Protocols
UDP, TCP/IP (IPv4), DHCP, ARP, DNS, HTTP/HTTPS Client
and Server1
Power Consumption
(Typical)
Standby = 34.0 µA(WizFi210), 35.0 µA(WizFi220)
Receive = 125.0 mA(WizFi210), 125.0 mA(WizFi220)
Transmit = 135.0 mA(WizFi210), 250.0 mA(WizFi220)
RF Output Power (Typical)
8 ± 1 dBm (WizFi210)
17 ± 1.5 dBm (WizFi220)
Security Protocols
WEP, WPA/WPA2–PSK, Enterprise(EAP-FAST, EAP-TLS,
EAP-TTLS, PEAP)1
I/O Interface
UART, SPI1, WAKE, ALARM, GPIOs
Power Source
3.3V
Dimensions
32 x 23.5 x 3 mm
Table 1 Brief Specification
1 A dedicated SW is for support to this function
1
1
WizFi210 DataSheet (WIZnet Co., Ltd.)
3-3
3. Block Diagram
WizFi210 and WizFi220 have the same functions and capabilities except their RF Transmission
Power.
WizFi220 has extra PA inside for improving its RF Transmission Power.
Figure 1 WizFi210 block diagram
Figure 2 WizFi220 block diagram
WizFi210 DataSheet (WIZnet Co., Ltd.)
4-4
4. Pin Description
4.1. Pin Map
Figure 3 WizFi210 Pin map
4.2. Pin Description
PIN
NAME
I/O
IN BIAS
DESCRIPTION
1
GND
P
NA
Ground
2
NA
I
Pull-up
3
NA
O
NA
4
NA
I
NA
5
NA
I
Pull-up
6
NA
I
Pull-up
WizFi210 DataSheet (WIZnet Co., Ltd.)
4-5
7
ALARM1
I
NA
Embedded Real Time Clock Wake Up Input 1
8
NA
O
NA
9
VBAT
P
NA
Embedded Real Time Clock Power Supply
10
DC_DC_CNTL
O
NA
VIN_3V3 Regulator Control Output
11
ALARM2 (*)
I
NA
Embedded Real Time Clock Wake Up Input 2
12
ADC1 (*)
I
NA
General Analog to Digital Converter 1
13
ADC2 (*)
I
NA
General Analog to Digital Converter 2
14
NA
I/O
Pull-down
15
NA
I/O
Pull-down
16
NA
I/O
Pull-down
17
VOUT_1V8 (*)
P
NA
Internal 1.8V Vout
18
GND
P
NA
Ground
19
NA
I/O
Pull-down
20
NA
I/O
Pull-down
21
NA
I/O
Pull-down
22
GPIO10
I/O
Pull-down
General Purpose Input Out-put
23
GPIO19 (*)
I/O
Pull-down
General Purpose Input Output
Data Received Indicator to Host while using
SPI
This is OUTPUT, means HOST_WAKEUP,
from WizFi210
24
GPIO20
I
Pull-down
General Purpose Input Output
25
GPIO21
I
Pull-down
Factory Reset(Normal High)
Factory mode 1 : Limited AP & Web Server for
configuration
Factory mode 2 : Ad-hoc mode
26
NA
IO
Pull-down
27
SPI_MISO (*)
O
Pull-up
SPI Slave Transmit Data Output to the HOST
28
SPI_CLK (*)
I
Pull-up
SPI Slave Clock Input from the HOST
WizFi210 DataSheet (WIZnet Co., Ltd.)
4-6
29
SPI_CS (*)
I
Pull-up
SPI Slave Chip Select Input from the HOST
30
SPI_MOSI (*)
I
Pull-down
SPI Slave Receive Data Input from the HOST
31
GND
P
NA
Ground
32
VIN_3V3
P
NA
Single Supply Port
33
EN_1V8
I
NA
Internal 1.8V regulator enable port
Active High
34
VDDIO(**)
P
NA
All I/O voltage domain (can be tied to VIN_3V3
or tied to HOST I/O supply)
35
EXT_nRESET
I
Pull-up
Module Hardware Reset Input2
36
NA
I/O
Pull-down
37
GPIO27 (*)
O
Pull-down
Firmware Program Enable
WizFi210/220 operate as firmware download
mode, if this is HIGH at booting
On normal mode, this should be LOW
38
NA
I
Pull-down
39
NA
O
Pull-down
40
UART0_TX
O
Pull-down
Universal Asynchronous Receiver Transmitter
Output
41
UART0_RTS
O
Pull-down
Universal Asynchronous Receiver Transmitter
Request to Send Output
42
UART0_RX
I
Pull-down
Universal Asynchronous Receiver Transmitter
Input
43
UART0_CTS
I
Pull-down
Universal Asynchronous Receiver Transmitter
Clear to Send Input
44
GPIO31
(S_MODE)
O
Pull-down
Data mode / command mode status Indicator
You can monitor this pin to know which mode is
now.
LOW : Data mode
HIGH : Command mode
45
GPIO30
(S_RX)
O
Pull-down
Serial Data Received
46
GPIO29
(C_MODE)
I
Pull-down
Switch of Command mode or Data mode
You can control this pin to switch some mode
2 In case of WizFi220, after HW reset on EXT_nRESET, user should command, AT+XRESET inorder to
initialize all memory and configuration inside WizFi220.
WizFi210 DataSheet (WIZnet Co., Ltd.)
4-7
LOW : Data mode
HIGH : Command mode
47
GPIO28
(S_ASSOCIAT
E)
O
Pull-down
AP Association status
LOW : associated
HIGH : disassociated
48
GND
P
NA
Ground
49
EXT-ANT
IO
NA
External Antenna pad
Table 2 WizFi210 Pin Description
4.3. Factory Reset Timing Diagram
Figure 4 Factory Reset Timing Diagram
Variable
Min
Typ
Max
t1
200ms
300ms
500ms
t2
200ms
300ms
500ms
Table 3 Factory Reset Timing Value
t1
t2
Factory Mode 1
Factory Mode 2
WizFi210 DataSheet (WIZnet Co., Ltd.)
5-8
5. EXT_nRESET guide
EXT_nRESET pin is bidirectional.
EXT_nRESET pin is an output right at power-on, and kept it asserted while the 32KHz crystal is
stabilizing. Once crystal is stabilized, RESET is de-assert and it becomes an input.
MCU does need to assert the signal if there is not any problem such as hang-up.
Note: Minimum pulse width for reset is two 32KHz clock.
Figure 5 Reference Schematic for EXT_nRESET
EXT_nRESET signal is active low signal .
It’s an output during power up, and it notifies to host processor that WizFi210 device is out of
power-on-reset. After power-on-reset, this pin becomes an input. To assert EXT_nRESET is
required to initialize WizFi210 without Power-on-reset.
But there are some difference between Power-on-reset and asserting EXT_nRESET.
Power-on-reset clear and initialize all configuration information which is set in WizFi210, but
asserting EXT-nRESET doesn’t clear and initialize some configuration information. So, if user
assert EXT_nRESET for initialization of WizFi210, user should place a command,
“AT+XRESET” to WizFi210 for initialization of all configuration information successfully.
WizFi210 DataSheet (WIZnet Co., Ltd.)
6-9
6. RF Specification
Specification
Description
Modulation Technique
DSSS for 1, 2Mbps
CCK for 5.5, 11Mbps
Data Rate
IEEE 802.11b: 1, 2, 5.5 and 11Mbps
Receive Sensitivity
(U.FL Connector version)
-84dBm ± 1dB @ 11Mbps
-88dBm ± 1dB @ 5.5Mbps
-90dBm ± 1dB @ 2Mbps
-94dBm ± 1dB @ 1Mbps
Transmit power
(U.FL Connector version)
WizFi 210 : 8dBm ± 1dB @ 11Mbps
WizFi 220 : 17dBm ± 1.5dB @ 11Mbps
Frequency Range
USA: 2.400 ~ 2.483GHz
Europe: 2.400 ~ 2.483GHz
Japan: 2.400 ~ 2.497GHz
China: 2.400 ~ 2.483GHz
Operating Channels
USA/Canada: 11 (1~11)
Major Europe Countries: 13 (1~13)
France: 4 (10~13)
Japan: 14 for IEEE 802.11b (1~13 or 14th),
13 for IEEE 802.11g (1~13)
Korea/China: 13 (1~13)
Antenna
U.FL External Antenna Support(CON)
External Antenna Pad Support(EX)
Chip Antenna (Optional) (CA)
Table 4 RF Specification
WizFi210 DataSheet (WIZnet Co., Ltd.)
7-10
7. Power Consumption
7.1. WizFi210 Mode 1(VDDRTC=VDD=3.3V, VDDIO=1.8V, Temp=25°C)
WizFi 210
Min
Type
Max
Unit
Standby mode
(Only VDDRTC is active)
35
50
µA
Idle mode
(CPU running, WLAN disconnected)
10
mA
Receive
(-81dBm RX sensitivity)
125
130
mA
Transmit
(+8dBm at antenna port)
135
140
mA
Table 5 WizFi210 Mode 1(VDDIO = 1.8V)
7.2. WizFi210 Mode 2(VDDRTC=VDD=3.3V, VDDIO=3.3V, Temp=25°C)
WizFi 210
Min
Type
Max
Unit
Standby mode
(Only VDDRTC is active)
35
50
µA
Idle mode
(CPU running, WLAN disconnected)
11
mA
Receive
(-81dBm RX sensitivity)
125
130
mA
Transmit
(+8dBm at antenna port)
135
140
mA
Table 6 WizFi210 Mode 2(VDDIO = 3.3V)
WizFi210 DataSheet (WIZnet Co., Ltd.)
7-11
7.3. WizFi220 Mode 1(VDDRTC=VDD=3.3V, VDDIO=1.8V, Temp=25°C)
WizFi 220
Min
Type
Max
Unit
Standby mode
(Only VDDRTC is active)
35
50
µA
Idle mode
(CPU running, WLAN disconnected)
12
mA
Receive
(-81dBm RX sensitivity)
125
130
mA
Transmit
(+8dBm at antenna port)
250
260
mA
Table 7 WizFi220 Mode 1(VDDIO = 1.8V)
7.4. WizFi220 Mode 2(VDDRTC=VDD=3.3V, VDDIO=3.3V, Temp=25°C)
WizFi 220
Min
Type
Max
Unit
Standby mode
(Only VDDRTC is active)
35
50
µA
Idle mode
(CPU running, WLAN disconnected)
13
mA
Receive
(-81dBm RX sensitivity)
125
130
mA
Transmit
(+8dBm at antenna port)
250
260
mA
Table 8 WizFi220 Mode 2(VDDIO = 3.3V)
WizFi210 DataSheet (WIZnet Co., Ltd.)
8-12
8. Dimension
8.1. Module Dimension
Figure 6 Module Dimension
WizFi210 DataSheet (WIZnet Co., Ltd.)
8-13
8.2. Recommended Footprint Dimension
Figure 7 Recommended Footprint Dimension
WizFi210 DataSheet (WIZnet Co., Ltd.)
9-14
9. Electrical characteristics
9.1. Operating Condition
Min
Typ
Max
Unit
Operating Ambient Range
-40
+85
°C
RTC Supply Voltage
1.2
3.3
3.6
V
Single Supply Voltage
3.0
3.3
3.6
V
Table 9 Operating Condition
9.2. Digital Input characteristics
Min
Typ
Max
Unit
IO Supply Voltage
1.62
1.8
1.98
V
3
3.3
3.63
Input Low Voltage (VIL)
-0.3
0.25VDDIO
V
Input High Voltage (VIH)
0.8VDDIO
VDDIO
V
Schmitt trig. Low to High threshold point
(VT+)
1.5
V
Schmitt trig. High to Low threshold point
(VT-)
1
V
Table 10 Digital Input Characteristics
9.3. Digital Output characteristics
Min
Typ
Max
Unit
IO Supply Voltage
1.62
1.8
1.98
V
3
3.3
3.63
Output Low Voltage (VIL)
0
0.4
V
Output High Voltage (VIH)
1.3
VDDIO
V
Output rise time (tTLH)
7
ns
Output fall time (tTHL)
7
ns
Table 11 Digital Output Characteristics
WizFi210 DataSheet (WIZnet Co., Ltd.)
9-15
9.4. Tri-State I/O characteristics
Min
Typ
Max
Unit
IO Supply Voltage
1.62
1.8
1.98
3
3.3
3.63
Input Low Voltage (VIL)
-0.3
0.25VDDIO
V
Input High Voltage (VIH)
0.8VDDIO
VDDIO
V
Schmitt trig. Low to High threshold point
(VT+)
1.5
V
Schmitt trig. High to Low threshold point
(VT-)
1
V
Pull-Up Resistor (Ru)
0.05
1
MΩ
Pull-Down Resistor (Rd)
0.05
1
V
Output Low Voltage (VOL)
0
0.4
V
Output High Voltage (VOH)
1.3
VDDIO
V
Output rise time @ 3.3V (tToLH)
7
ns
Output fall time @ 3.3V (tToHL)
7
ns
Input rise time (tTiLH)
7
ns
Input fall time (tTiHL)
7
ns
Table 12 Tri-State I/O Characteristics
9.5. RTC Input characteristics
Min
Typ
Max
Unit
RTC Supply Voltage (VDDRTC)
1.2
3.6
V
Input Low Voltage (VIL)
-0.3
0.25VDDRTC
V
Input High Voltage (VIH)
0.8VDDRTC
VDDRTC
V
Schmitt trig. Low to High threshold point
(VT+)
0.57VDDRTC
0.68VDDRTC
V
Schmitt trig. High to Low threshold point
(VT-)
0.27VDDRTC
0.35VDDRTC
V
Table 13 RTC Input Chracteristics
WizFi210 DataSheet (WIZnet Co., Ltd.)
9-16
9.6. RTC Output characteristics
Min
Typ
Max
Unit
RTC Supply Voltage (VDDRTC)
1.2
3.6
V
Output Low Voltage (VOL)
0
0.4
V
Output High Voltage (VOH)
0.8VDDRTC
VDDRTC
V
Output rise time (tTLH)
19
142
ns
Output fall time (tTHL)
21
195
ns
Table 14 RTC Output Characteristics
9.7. Internal 1.8V regulator characteristics
Min
Typ
Max
Unit
Output Voltage (VOUT_1V8)
1.8
V
Maximum Output Current (IVOUT_1V8)
250
300
mA
1.8V Regulator Enable "H" Voltage
(EN_1V8)
1.0
VIN_3V3
V
1.8V Regulator Enable "L" Voltage
(EN_1V8)
0
0.25
V
Table 15 Internal 1.8V Regulator Characteristics
9.8. Communication Interface
9.8.1. UART Interface characteristics
9.8.2. SPI Interface characteristics
Figure 8 SPI Interface Timing Diagram
WizFi210 DataSheet (WIZnet Co., Ltd.)
9-17
Parameter
Description
Minimum
Maximum
Unit
tSSetup
Minimum time between falling edge of
Select line and first rising edge of SPI
clock.
4 core SPI
clock periods
+ 68 ns
mixed
tTxdDelay
Delay in Slave asserting TX line after
falling edge of SPI clock, or the first bit
after falling edge of the Select line.
4 core SPI
clock
periods +
68 ns
mixed
tRxdSetup
Time before rising edge of SPI clock
by which received data must be ready
15
ns
tRxdHold
Time for which received data must be
stable after rising edge of SPI clock
3 core SPI
clock periods
+ 14 ns
mixed
tSSHold
Time for which the Select line will be
held after the sampling edge for the
final bit to be transferred
3 core SPI
clock periods
+ 14 ns
mixed
Table 16 SPI Interface Timing value
WizFi210 DataSheet (WIZnet Co., Ltd.)
10-18
10. Reflow Condition
Condition
Recommend
Range
Unit
Pre-Heat
Temperature Ramp up rate for (A)
3
2~4
℃/s
Pre-heat time (B)
130
60~180
sec
Pre-heat ending temperature (C)
200
150~200
℃
Heating
Peak Temperature range (D)
236
230~240
℃
Melting time that is the time over 218℃ (E)
45
30~50
sec
Table 17 Reflow condition
Figure 9 Reflow Chart
WizFi210 DataSheet (WIZnet Co., Ltd.)
11-19
11. Circuit guide for On-board FW upload
WizFi210 provides some specific firmware according to its services. Until now, there are four
standard firmware and some customized firmware to specific customers.
WizFi210 decides its operating mode according to the input value of GPIO27. WizFi210
operates as programming mode when GPIO27’s input value is “HIGH”, otherwise running mode.
WizFi210 communicate with PC via UART in order to upload another firmware, so you have to
connect UART0_Rx and UART0_Tx to the external interface for communicating with PC.
So, we recommend that you make your board be capable to upload another firmware as Figure
7 below.
Figure 10 Reference schematic for On-Board FW Upload
WizFi210 DataSheet (WIZnet Co., Ltd.)
12-20
12. Reference Schematic
Figure 11 VIN = Battery, Standby mode support
Figure 12 VIN = DC Adaptor, Always active
